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***********           PANJIT International Inc.             ***********
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*Aug 09, 2019                                                         *
*                                                                     *
*This SPICE Model describes the characteristics of a typical device   *
*and does not respresent the specification. Designer should refer to  *
*the same type name data sheet for specification limits.              *
***********************************************************************
*$
.subckt BZX84B12 1 2 3 
.param
+vc0 = 4.046e-11	vc1 = 3.546e-11		vc2 = 1.000e0		vc3 = 2.707e-12		vc4 = 4.071e-1
+tc1 = 1.051e-2		tc2 = 4.881e-3		tc3 = 2.051e-3		tc4 = 3.021e-2		   
.func irexp(v) {(vc0+vc1*v**vc2)*(1.0+tc1*(temp-25)*exp(tc2*(temp-25)))+(vc3*exp(vc4*v))*(1.0+tc3*(temp-25)*exp(tc4*(temp-25)))}
d1 1 3 zener
g1 3 1 value = {irexp(v(3,1))}
.model zener d
***** flag parameter *****
+level = 1
***** dc model parameter *****
+ is = 1.434e-15	   n = 1.053		  rs = 1.174e-1		 ikf = 1.0e-1
+ibv = 5e-3		 nbv = 1.0		  bv = 12
***** capacitance parameter *****
+cjo = 3.610e-11	   m = 3.284e-1		  vj = 5.768e-1
+ fc = 0.5
***** temperature coefficient *****
+tnom = 25		  eg = 1.136		 xti = 3
+trs1 = 1.285e-3	trs2 = 1.585e-6		tikf = 1.5e-4
+tbv1 = 8.116e-4	tbv2 = -1.469e-6
.ends BZX84B12
*$
